CN1788522B

CN1788522B - Head phone device

Info

Publication number: CN1788522B
Application number: CN2005800003865A
Authority: CN
Inventors: 角田直隆
Original assignee: Sony Corp
Current assignee: Sony Corp
Priority date: 2004-04-16
Filing date: 2005-04-14
Publication date: 2011-05-18
Anticipated expiration: 2025-04-14
Also published as: US20060188121A1; CN1788522A; TWI301382B; KR101117502B1; JP4127235B2; BRPI0504914A; TW200603650A; KR20070001782A; US7983438B2; WO2005101895A1; JP2005311448A

Abstract

A headphone device where a back housing provided behind a driver unit of a headphone unit and a baffle section provided at a front face are formed from a porous material having air permeability. The headphone device is a device where a baffle section constructed so as to surround a space except a front opening of a driver unit and/or a back housing section constructed so as to cover the rear face of the driver unit are formed using a porous material having air permeability.

Description

Headphone device

Technical field

The present invention relates to improvement, wherein when putting on this Headphone device, improved sound quality, alleviated the sensation of ear upward pressure and confined sense, and obtained comfortable sensation Headphone device.

Background technology

Various large scale Headphone devices with high relatively sound quality are provided, and generally, in order in holding the back casing of actuator unit, to produce the sound field space that is used for the nature sympathetic response, have and use the Headphone device of solid Zelkova timber etc. to sell, but, its housing parts and ear pad part are bigger, cause weight to increase thus.

Fig. 6 is a side cross-sectional, view, show be shown in the patent documentation 1 being used for existing big and have a back housing portion of the Headphone device of higher sound quality.

In Fig. 6, reference number 1 refers to be roughly ring-type or elliptoid sound panel by what the material such as synthetic resin or timber formed, and sound can not pass through its propagation.

Actuator unit 5 with respect to or be assemblied in the through hole 4, this through hole is formed on the approximate center of this sound panel 1.

Actuator unit 5 has electrodynamic type structure, is similar to standard loudspeakers, and the voice coil loudspeaker voice coil 5C that wherein is fixed to cheese barrier film 5A is driven between magnet 5B and concave yoke 5D.

Be formed at through hole 4 under the situation at center of sound panel 1 and form a plurality of air vent hole 6A, 6B ..., and be attached to each through hole 6A and 6B by the high ventilative ventilation component 9 that sponge or non-woven fibre etc. is made.

Cheese back casing 2 covers the rear surface of sound panel 1 and becomes one to form the housing 3 as the sound insulation part with sound panel 1.

Ventilation hole 7 is formed on the rear surface (top) of housing 2, and ventilation component 9 is attached to ventilation hole 6 in the sound panel 1 similarly to strengthen soundproof effect.The solid Zelkova wood of nonferrous metal, synthetic resin or aforesaid wooden materials can be selected to be used for back casing 2, and the sound field space forms more greatly to improve sound quality.

The front surface of sound panel 1 is provided with ear pad 8, and wherein the crust 10 made by synthetic resin, leather or cloth etc. of the roughly circular cushion member of being made by sponge etc. is surrounded.

[patent documentation 1] utility model application publication number H5-36991 (Fig. 6).

Summary of the invention

As in the Headphone device of above-mentioned formation, in order to ensure intensity, except housing 3, the support member of support head hoop etc. is also formed by hardware, and the weight of entire headset device is excessive thus.

When on head, wearing this bigger and heavier Headphone device, there are head and ear to feel the problem of heavy and pressurized, this has increased the weight of to cause offending confinement sense of wearing impression.

In addition, there is the problem of the general confinement sense of the Headphone device that will inevitably produce in existing structure.

The present invention is intended to eliminate the problems referred to above and intention obtains a kind of Headphone device, the ventilative sound insulation of general conical that wherein has soundproof effect partly is set between actuator unit and the ear pad, has eliminated thus and has confined sense and reduced the sympathetic response acutance when obtaining than light weight.

Second problem is the dark noise that external voice causes, and the present invention is intended to address this problem, and a kind of Headphone device of intention acquisition, the housing that wherein holds actuator unit is formed to prevent that external voice from becoming dark noise (not constrained) by ventilative light component output.

Description of drawings

Fig. 1 is the side cross-sectional, view that is used for the headphone unit of Headphone device of the present invention;

Fig. 2 A and 2B are the forward sight and the end views of Headphone device of the present invention;

Fig. 3 A and 3B are used for the stereogram of sound insulation part of Headphone device of the present invention and the side cross-sectional, view of back casing;

Fig. 4 A to 4C is the zoomed-in view in the cross section of material, is used for illustrating the sound insulation part that is used for Headphone device of the present invention and the porous material of back casing.

Fig. 5 is the three-dimensional view that another structure of Headphone device of the present invention is shown; And

Fig. 6 is the side cross-sectional, view that is used for the headphone unit of existing Headphone device.

Embodiment

Below, will describe embodiments of the invention in detail referring to figs. 1 to Fig. 4.Fig. 1 is the side cross-sectional, view that has according to the housing parts of actuator unit of the present invention; Fig. 2 A and 2B are the external views according to Headphone device of the present invention; Fig. 3 A and 3B are used for the stereogram of sound insulation part of the present invention and the side cross-sectional, view of back casing; Reaching Fig. 4 A to 4C is the sectional view of part A among Fig. 3 A, is used to explain the method for the ventilative member of processing.

For Fig. 1 to Fig. 4, before key diagram 1, the structure of Headphone device of the present invention is described with reference to figure 2A and 2B.

Fig. 2 A and 2B show the front view and the right side view of Headphone device respectively.In Fig. 2 A and 2B, Headphone device 11 comprises by the flexible light weight earphone hoop 12 of making such as the metal of duralumin or magnesium alloy or being made by carbon synthetic material etc., and each all has a left side and the right earphone unit 13L and the 13R of actuator unit.

In a left side and

right earphone unit

13L and 13R, include actuator unit, and actuator unit is maintained among a left side and correct frame 14L and the 14R, each all has by the 14B of bridge portion that makes such as the light metal member of titanium alloy that forms the bridge shape in edge 14A or magnesium alloy, and earphone hoop 12 has a left side and the right hoop adjustment member 16L and the 16R of U-shaped roughly, and it is fixed to can pivot the roughly semicircular left side that is attached to a left side and

correct frame

14L and 14R and the right side dangle framework 15L and 15R.In a left side and

correct frame

14L and 14R, be provided with ear pad 27.

In Fig. 2 A,

reference number

17L and 17R refer to the left and right sound insulation part of the taper of describing after a while, and in Fig. 2 A and 2B,

reference number

19L and 19R refer to also will be at a left side and the right back housing of description after a while.

Below, will utilize Fig. 1,3 and 4 that a left side of the present invention and

right earphone unit

13L and 13R are described.

In Fig. 1, in a left side and

right earphone unit

13L and 13R (hereinafter referred to as headphone unit 13), the actuator unit 20 that constitutes loud speaker is assemblied in the through hole 22 of the center that is formed at plate-like sound panel 21.Loud speaker in the actuator unit 20 has the dynamic type structure of standard.In this actuator unit 20, reference number 23 refers to that yoke, 24 refers to that voice coil loudspeaker voice coil, 25 refers to dome-shaped barrier film, and 26 graduated dial shape magnets.

In framework 14 (14L and 14R), shown in Fig. 1 and Fig. 2 A and 2B, use lightweight alloy such as titanium alloy or magnesium alloy, arch bridge 14B forms the bridge shape to ring-shaped edge 14A, and sound panel 21 is fixed in the through hole 14C that is formed among the bridge 14B.In addition, label 20A refers to protector.

After actuator unit 20, be formed with the back casing 19 that roughly covers shape, be used to keep the predetermined space between actuator unit and the sound panel 21.Back casing 19 locks by the through hole 14D in the bridge 14B that is formed on framework 14.

Be provided with sound insulation part 17 between the edge 14A of the bridge 14B of framework 14 and framework 14, be similar to the barrier film of loud speaker, it is tapered.

By the attaching framework 31 integrally formed with the edge 14A of framework 14, ear pad 27 is attached to the edge 14A of framework 14, in ear pad 27, the gasket material that crust 29 covered 28 of being made and being made by soft cloth material or leather etc. by extensible synthetic resin or sponge etc. has formed circular and has been the asymmetric pattern in front and back (being the asymmetric pattern of level among Fig. 1).

Fig. 3 A and 3B show the sound insulation part 17 in the above-mentioned headphone unit 13 and the stereogram and the side cross-sectional, view of back casing 19.

As shown in Figure 1, the sound insulation part 17 of bridge 14B between edge 14A that is arranged on framework 14 roughly forms taper with the ventilative porous material 32 with loose structure, as shown in Figure 3A.The adhesive-bonded fabric that for example can use cellulose timber, chemical fibre is (by the Eltas Smash of ASAHI KASEIFIBERS company manufacturing

) or cellulosic-based material etc. as porous material.

Fig. 4 A to 4C shows the amplification sectional view of the part A among Fig. 3 A on thickness direction, and shown in Fig. 4 C, a kind of porous material 32 of selection heats in the mould of the shape of similar Fig. 3 A and pressurizes from above-mentioned material, is molded as the sound insulation part 17 shown in Fig. 3 A thus.

The upper shed part 17A of the taper sound insulation part 17 shown in Fig. 3 A is inserted and secured in the slot part among the bridge 14B of the framework 14 shown in Fig. 1, and under shed part 17B is inserted and secured in the slot part among the edge 14A of framework 14.

Fig. 3 B shows the modified example of the back casing 19 among Fig. 1, and wherein through hole 33 is formed on the place, top that actuator unit 20 among Fig. 1 lid 35 that be received or that be provided with a large amount of through holes 34 is inserted and secured on the rear surface in the through hole 33.Back casing 19 is made by being similar to the porous material that Fig. 1 is molded.A plurality of through holes are set to cover through hole 34 in 35 to obtain than the more air-flow of porous material.In addition, for lid 35, except porous material, also can select other materials such as predetermined ventilative synthetic resin or metal.

Additive method with reference to figure 4A and 4B explanation above-mentioned sound insulation part 17 of formation and back casing 19.

Fig. 4 A and 4B are that wherein a plurality of porous materials are in conjunction with situation about being shaped, in Fig. 4 A, the mold pressing that synthetic sheet material is used to obtain shown in Fig. 3 A and 3B is the sound insulation part 17 and the back casing 19 of reservation shape, in this synthetic sheet material, the adhesive sheet 32B of the nonwoven cloth by being provided with predetermined hole is combined with the nylon cloth 32C of second porous material on the ventilative cellulose timber 32A as the ground floor of porous material.

Structure shown in Fig. 4 B is a sheet material, wherein by ventilative double faced adhesive sheet 32E, be laminated to ventilative cellulose or chemical fibre base adhesive-bonded fabric 32F as the ventilative chemical fibre adhesive-bonded fabric 32D of ground floor, and sound insulation part 17 and back housing portion 19 form by molded this sheet material to reservation shape as the second layer.

In above-mentioned synthetic sheet material, cloth to cloth and cellulose timber to cloth is used as the combination between first and second layer, but, can use cellulose timber to cellulose timber, cloth to combination of cellulose timber etc. as first and second layer to stablize the shape of sound insulation part 17 and back casing 19.

Said structure according to sound insulation part 17 and back casing 19, because the sound that enters from the outside is not blocked in the outside through entering the space that holds actuator unit 20 between sound panel 21 and the back casing 19, so can prevent to become dark noise (dark noise), can send the sound clearly that does not constrain simultaneously from the sound of outside.

In addition, sound insulation part 17 forms predetermined taper makes bass concentrate in the earhole, and penetrating inside from the outside by the air in the space that allows to be surrounded by sound insulation part 17 also appears internally to the outside, characteristic in the low scope can be set according to need, this has improved low range frequencies characteristic and bass lens (bass lens) effect greatly, when obtaining thus on being worn over ear, wherein wt alleviates and the Headphone device that can not cause sense of heaviness and can not cause feeling of stress because of the transverse pressure on the ear.

As shown in Figure 5, the present invention can be applied to the headphone that microphone 40 wherein is attached to above-mentioned Headphone device.

Industrial applicability

According to the present invention, by in the position away from two ears actuator unit being set, can obtain Headphone device and attaching microphone Headphone device that soundproof effect wherein can further improve by the means of bass lens effect.

Claims

1. Headphone device wherein forms the sound insulation part of surrounding the space the open front part of removing actuator unit, and/or the back housing portion that forms the rear surface of the described actuator unit of covering is made by using ventilative porous material.

2. Headphone device according to claim 1, wherein said sound insulation part is roughly tapered.

3. Headphone device according to claim 1 wherein is formed with opening in the rear surface of described back housing portion.

4. according to each described Headphone device in the claim 1 to 3, wherein the chemical fibre adhesive-bonded fabric is used as described ventilative porous material.

5. according to each described Headphone device in the claim 1 to 3, wherein cellulosic-based material is used as described ventilative porous material.

6. Headphone device according to claim 1, wherein said actuator unit is set in the bridge portion, the similar arch of this bridge portion shape, this arch is formed up to the bridge at edge, and this edge forms framework.

7. Headphone device according to claim 2, the described conical in shape of wherein said sound insulation part is asymmetric with respect to the axis of described taper.

8. Headphone device according to claim 4, wherein said chemical fibre adhesive-bonded fabric combines with porous material to stablize its shape by ventilative adhesive layer.

9. Headphone device according to claim 5, wherein said cellulosic-based material combines with porous material to stablize its shape by ventilative adhesive layer.

10. Headphone device according to claim 1, wherein microphone equipment is attached to described Headphone device.